baber/WOPTO huggingface dataset:
Patent CA-2011863-A1 (CA)
Title: Mold for the preparation of reinforced reaction injection molded parts
Inventor: SLOCUM GREGORY H
IPC: B29C33/10
Filed: 1990-03-09
Abstract: Mo3187 MOLD FOR THE PREPARATION OF REINFORCED   REACTION INJECTION MOLDED PRODUCTS             ABSTRACT OF THE DISCLOSURE          The present invention is directed to a mold for the production of reinforced reaction injection molded products comprising:          i)    an upper mold part, ii)   a lower mold part, said parts having surface portions defining the interior of a mold cavity when said mold is in the closed position, iii)  a first channel in one of said parts completely surrounding said cavity, one upper edge of said channel forming at least a portion of the outer edge of said cavity, and wherein said channel is at least partially filled with an elastomeric material, and iv)   a first shear plate attached to the other of said parts in a location opposite said channel, wherein when said mold is in the closed position, said first shear plate: a)  enters said first channel, b)  presses against said elastomeric material, and c)  presses against said outer edge, said first shear plate having one or more tapered slots therein, said slots: (1) tapering down from the surface of said first plate which is adapted to press against said elastomeric material, and (2) being capable of allowing gases to escape from said cavity when said mold is in the closed position.          Mo3187
Patent CA-2012201-A1 (CA)
Title: Method for treating muddy water
Inventor: OKAMOTO SOHEI
IPC: C02F1/52
Filed: 1990-03-14
Abstract: ABSTRACT OF THE DISCLOSURE     A method for treating muddy water which comprises adding a first chemical containing an alkali metal or alkaline earth metal oxide or hydroxide to muddy water to be treated, thereby rendering muddy water alkaline,  adding a second chemical  containing an anionic polymer coagulant to muddy water simultaneously with or after the addition of the chemical, further adding a third chemical containing a sulfate thereby rendering the muddy water weakly alkaline, and then adding a fourth chemical containing an anionic polymer coagulant to muddy water.  As a result, large-sized and hard flocs are produced.
Patent CA-2013351-A1 (CA)
Title: Method for preparing cyclie polyarylate oligomers
Inventor: GUGGENHEIM THOMAS L
IPC: C08G63/181
Filed: 1990-03-29
Abstract: ABSTRACT            METHOD FOR PREPARING CYCLIC POLYARYLATE              OLIGOMERS           Cyclic polyarylate oligomer compositions are prepared by the reaction of an aromatic dicarboxylic acid halide, such as isophthaloyl chloride or terephthaloyl chloride, with a water-soluble salt of a dihydroxyaromatic compound, such as bisphenol A disodium salt.  Freshly prepared solutions of the halide in an organic liquid such as methylene chloride, and of the salt in water, are simul-taneously introduced into an organic liquid containing a catalytic amount of at least one quaternary ammonium salt having a single alkyl group containing about 8-20 carbon atoms and having not more than 5 additional carbon atoms. The dihydroxyaromatic compound salt is employed in the amount of at least about 3% in excess of stoichiometric.
Patent CA-2013445-A1 (CA)
Title: Hybrid phase-locked loop
Inventor: SCHMIDT KONRAD
IPC: H03L7/093
Filed: 1990-03-30
Abstract: The invention relates to a phase-locked loop comprising a phase detector (PD), an analog-to-digital converter (ADC), a loop filter (LF), a digital-to-analog converter (DAC) and a voltage-controlled oscillator (VCO). The phase fitter that occurs in such a hybrid phase-locked loop is reduced without enhancing the requirements as to the resolution of the digital-to-analog converter (DAC), in that a fractionizer (FR) is inserted after the loop filter (LF) that is operating at a first clock (TL), which fractionizer produces a main value (HW) and a residual value (RW), and the sum (SW) of the main value (HW) and a correction bit (KB) derived from the residual value (RW) is applied to the digital-to-analog converter (DAC) that is operating at a second clock (TA).
Patent CA-2016271-A1 (CA)
Title: Method and apparatus for repaving asphaltic pavement
Inventor: WILEY PATRICK C
IPC: E01C23/06
Filed: 1990-05-08
Abstract: ABSTRACT          An asphaltic pavement preconditioning machine to remove and grind up old asphalt so that it can be rejuvenated.  The method and apparatus heats a strip of asphalt,  grinds a first strip portion and moves the ground asphalt to a second strip portion leaving behind an exposed unsoftened layer.   Both the ground material and the previously heated unground asphalt in the second strip are then ground.  The exposed hard asphalt in the first strip is heated, softened and then ground and moved onto the first strip portion.  The heat from the ground asphalt lying over the center strip  portion  softens  the  unground  asphalt  there  which  is subsequently ground together with the ground material and left for further processing.  At least three heating and grinding steps are effected so that the depth of asphalt requiring softening by heat is  approximately  1/2  to  5/8  inches  and  smoke  emission  is substantially lower than prior methods.
Patent CA-2016581-A1 (CA)
Title: Process for preparing halogenated aromatic amines
Inventor: CHANG YU-WEI
IPC: B01J23/89
Filed: 1990-05-11
Abstract: TITLE Process For Preparing Halogenated Aromatic Amines ABSTRACT OF THE INVENTION This invention relates to a process for the hydrogenation of halogenated aromatic nitro compounds to the corresponding halogenated amines using a platinum catalyst in the presence of certain aminoalkyl ethers or alkanolamines.  It relates in addition to halogenated aromatic amines containing an amount of such aminoalkyl ether or alkanolamine effective to stabilize said halogenated aromatic amine.  The storage stabilizers and dehalogenation inhibitors contain a total of 2 to 6 carbon atoms and can be represented by the formula:                  R1-(R2)-N-(CH2)n-O-R3 wherein R1 and R2 may be the same or different -H or -CH2CH2OH, n is an integer from 2 to 3, and R3 is either -H or -CH3.
Patent CA-2018469-A1 (CA)
Title: 3,5-dihydroxypentanoic acid derivatives useful as antihypercholesterolemic agents and method for preparing same
Inventor: MAGNIN DAVID R
IPC: C07D277/06
Filed: 1990-06-07
Abstract: Abstract 3,5-DIHYDROXYPENTANOIC ACID DERIVATIVES USEFUL AS ANTIHYPERCHOLESTEROLEMIC AGENTS    AND METHOD FOR PREPARING SAME   3,5-Dihydroxypentanoic acid derivatives are provided which are 6-hydroxy-8-(2,2-dimethyl-1-oxy-butoxy-2-methyl)-substituted-thiazolidine derivatives and have the structure   wherein Z is           or          R6 is an alkali metal, lower alkyl or H; R1 and R2 are the same or different and are H, lower alkyl or aryl; X is S, O,   ,   or a single bond; R7 is lower alkyl;          R3 is lower alkyl or aryl; R4 and R5 are the same or different and are H or lower alkyl; and ---represents a single bond or a double bond, and are HMG CoA reductase inhibitors and thus are useful as antihypercholesterolemic agents and in treating atherosclerosis, and also as antifungal agents.       In addition, novel intermediates for use in preparing the above mevinic acid derivatives are also provided.
Patent CA-2019466-A1 (CA)
Title: Minerals in bioavailable form
Inventor: FAHIM MOSTAFA S
IPC: A61K47/18
Filed: 1990-06-20
Abstract: A soluble mineral in bioavailable form is formed from a mineral salt of a carboxylic acid derivative of a pentose or hexose such as zinc gluconate and an amino acid having the ability of stabilize the mineral salt when the mixture id neutralized in the zone of intracellular pH. Methods of treating an organism with the above-mentioned minerals are disclosed.
Patent CA-2022723-A1 (CA)
Title: Composite sheet material
Inventor: TOUGH WILLIAM H
IPC: D04H13/00
Filed: 1990-08-03
Abstract: COMPOSITE SHEET MATERIAL           ABSTRACT     A composite  sheet  material  is  made  by  creping two sheets of plain paper material together in a single operation  on  a  creping  cylinder  so  that  the  adjacent surfaces  of  the  creped  paper  sheets  are  in  intimate surface  contact  over  their  whole  areas  including  the similar  interlocking  crimps.   Optimally  the  contacting creped  surfaces  are  lightly  adhered  together.   The composite sheet  material  so  made  is  handleable  as  a single sheet and resistant to shear  forces but capable of  splitting  into  two  separate  sheets  when  subjected to a force perpendicular to its surface as happens when the  composite  sheet  material  has  been  used  to  bond together  two  articles  which  are  subsequently  to  be separated.
Patent CA-2023044-A1 (CA)
Title: Vessel for evaporation of low-temperature melting material
Inventor: ARAJ NAOUM
IPC: C23C14/24
Filed: 1990-08-09
Abstract: Abstract of the Disclosure A vessel for evaporation of low-temperature melting material comprises an open top compartment for holding a low-temperature melting material, and a lower closed chamber having an inlet and an outlet and a plurality of heat transfer fluid conducting paths between the inlet and outlet designed to minimize temperature difference between the inlet and outlet of the lower chamber.
Patent CA-2023594-A1 (CA)
Title: Fuel sensing unit
Inventor: LACAVA JAMES E
IPC: G01F23/26
Filed: 1990-08-20
Abstract: FUEL SENSING UNIT             ABSTRACT OF THE DISCLOSURE         A liquid sensing assembly (10)  senses the level  of  liquid  (18)  in  a  container  (12).    The assembly (10) includes a reference sensing capacitor (16)  for  sensing  the  dielectric  constant  of  the liquid and a level sensing capacitor (14) for sensing the level of the liquid with a dielectric factor.  A housing (20)  forms one plate of the capacitors (14, 18),  and two separate coiled wires form the second plates of the capacitors  (14,  18).   The capacitors (14,  18)  are  located within the housing  (20)  and separated  by  a  seal  (46)  to  prevent  liquid  from passing therethrough.   The reference capacitor (16) is located in the upper end (28) of the housing (20) and receives the liquid directly at an inlet (52) and fills  to  overflow  at  an  outlet  (56)  into  the container (12).   The level capacitor (16) is in the lower section of the housing (20) to sense the level in the container (12).
Patent CA-2025498-A1 (CA)
Title: Bag filling method and apparatus for preparing pharmaceutical sterile solutions
Inventor: BENN JAMES A
IPC: B65B3/00
Filed: 1990-09-17
Abstract: ABSTRACT OF THE DISCLOSURE A   bag   filling   method   and   apparatus   for   preparing pharmaceutical  sterile  solutions  in  a  plurality  of  sterile flexible  bags  in  a  non-sterile  environment,  which method  and apparatus comprise providing a pre-sterilized tubular bag having a  single  inlet,  introducing  a  solution  through  a  sterilizing filter and introducing the sterile solution into the inlet of the  tubular  bag  and  sealing  defined  sections  of  the  tubular bag after filling to a defined volume of the sterile solution to form a plurality of separate, flexible, sterile bags thereby providing a rapid,  inexpensive,  automated method and apparatus to prepare sterile solutions in bags.
Patent CA-2025519-A1 (CA)
Title: Free flow prevention system for infusion pump
Inventor: DODGE LARRY H
IPC: A61M39/28
Filed: 1990-09-17
Abstract: A free flow prevention system for preventing free flow of fluid through IV tubing (12) when the tubing (12) is disconnected from an infusion pump (10). A flexible clamp (20, 20A) is provided having a pair of clamping arms (24, 24A), which define a variable width slot (26, 26A) for receiving the IV tubing (12). The IV tubing (12) may be moved along the slot (26, 26A) between a first position (28) (Figure 4) wherein the width of the slot (26, 26A) is sufficient to permit the clamp (20, 20A) to be positioned longitudinally along the IV tubing (12), and a second position (30) wherein the width of the slot (26, 26A) is normally less than the width of the slot (26, 26A) at the first position (28). The clamping arms (24, 24A) are resiliently biased to a closed position (Figure 2) wherein the IV tubing (12) is squeezed when in its second position (30) to close the lumen of the tubing (12) to prevent fluid flow. A clamp-receiving passageway (18, 188) and clamp-opening wedge (22) are provided on the infusion pump (10). The clamp-opening wedge (22) is movable relative to a clamp (20, 20A) received in the passageway (18, 18B) to an operating position (Figure 3), wherein the wedge (22) moves the arms (24, 24A) of the flexible clamp (20, 20A) against their bias to an open position (Figure 3) wherein the lumen of the IV tubing (12) is allowed to open to permit fluid flow during operation of the pump (10). 4:1.22
Patent CA-2026449-A1 (CA)
Inventor: TANI KENSUKE
IPC: C08G18/08
Filed: 1990-09-28
Abstract: ABSTRACT OF THE DISCLOSURE       A method for producing a flexible polyurethane foam by the reaction of a mixture of an active hydrogen compound, a blowing agent, and an additive with an organic polyisocyanate, where water is used for generating carbon dioxide as the blowing agent; and the organic polyiso-cyanate is a mixture of (a)  an isocyanate-terminated prepolymer prepared by reacting, with diphenylmethane diisocyanate, one or more of alkylene-polyols constituted of ethylene oxide units and an alkylene oxide units of three of more carbon atoms in an addition-polymerization molar-ratio of from 40/60 to 0/100, having an average functionality of three or more, and having an average molecular weight of from 9000 to 30000, and (b)  a polyphenylmethane-polyisocyanate, in a mixing ratio of (a) to (b) in the range of from 20/80 to 80/20 by weight.
Patent CA-2026845-A1 (CA)
IPC: B01F7/04
Filed: 1990-10-03
Abstract: In a mixing kneader for the mechanical and/or thermal treatment of products, there is a shaft (16) arranged in a housing (1), on which shaft disk segments (21) are avoided distributed in the axial direction. In the kneading spaces (24) between the disk segments (21) there are fixed kneading counter-elements (27), which clean the disk segments (21) and shaft (16) and comprise a section (30), running close to the disk segments (21), and an arm (31), running close to the circumferential surface (37) of the shaft (16). In order that the section and the arm can give way to excessive product encrustations on the shaft, a center line (N) of the section (30) close to the disk segments (21) is to run at an inclination, in the direction of rotation (Z) of the shaft (16), corresponding to a secant through the shaft (16). Something similar also applies to the center line (O) of the arm (31) and to a leg (28) adjoining the section (30) at the other end from the arm (31). This has the effect that the formation of product bridges is also provided and the product conveyance and mixing action are improved. In addition, the mechanical stressing of the kneading element and the taking up of torque by the shaft are reduced.
Patent CA-2026887-A1 (CA)
Title: Article transfer mechanism
Inventor: SAATHOFF DAVID A
IPC: B65G43/00
Filed: 1990-10-04
Abstract: ABSTRACT OF THE DISCLOSURE                 An article transfer mechanism for use with an I.S. glassware forming machine includes a pusher arm having fingers for engaging a number of glassware articles formed by the I.S. machine, the pusher arm being movable between a first position to engage the glassware at the dead plate and a second position at which the glassware is transferred to a take-away conveyor.  A stepping motor is provided for moving the pusher arm between the first and second positions according to a velocity profile.  A microcontroller and electronic circuitry associated with each section of the I.S. machine determine a new current position of the pusher arm as the arm moves according to the velocity profile.  The microcontroller performs calculations at each new current position of the pusher arm according to an equation contained in a memory to determine a new velocity for the pusher arm at the new current position of the arm as a function of the current position, such that each new velocity at each current position defines the velocity profile.  The microcontroller performs the calculations "on-the-fly" as the pusher arm is moving through its 90° sweep between the dead plate to the conveyor.  The stored equation operates on user-input variables which permit the I.S. machine operator to alter the velocity profile and performance characteristics of the article transfer mechanism from an associated data entry terminal while the I.S. machine is operating.
Patent CA-2027068-A1 (CA)
Title: Rapidly crystallizing polyester molding materials
Inventor: BLOCKER ERICH
IPC: C08K7/14
Filed: 1990-10-05
Abstract: ABSTRACT OF THE DISCLOSURE            Thermoplastic molding materials substantially consisting of, in each case, at least one (A) polyalkylene tereph-thalate having a reduced specific viscosity (measured in 1% strength solution in dichloroacetic acid at 25°C) of at least 0.3 dl/g,  (B) nucleating agent,  (C) crystal-lization accelerator, and (D) if required, reinforcing agents and other conventional additives, in which (C) is at least one N,N'-disubstituted asymmetric oxalic acid bismide.   The use of such components (C) leads to only little migration and sublimation where moldings produced from  the  molding  material  are  heated,  so  that  a satisfactory  surface quality results. The nucleating agents and accelerators used in the molding material make it possible to reduce the mold temperature to at least 100 to 100°C.
Patent CA-2027263-A1 (CA)
Title: Quick change tooling for press machine
Inventor: KRANIS DANIEL SR
IPC: B21D37/04
Filed: 1990-10-10
Abstract: ABSTRACT OF THE DISCLOSURE Tools and tool supports in a press which permit a tool changeover operation to be performed quickly and easily are disclosed.  A pivot arm is carried on a ram of the press. A punch has an aperture formed therethrough, allowing it to be slidably mounted on the pivot arm. The punch is normally retained by a keeper for use in a first operating position on the pivot arm.  The punch may be reversed for use in a second operating position by raising the keeper out of its retaining position and moving the punch along the pivot arm toward a second position.  There, the punch can be rotated one hundred eighty degrees about the pivot arm.  Then, the punch is moved back to the first position. The keeper automatically retains the reversed punch adjacent to the first support block when the punch is moved back to its original position.  To remove the punch from the pivot arm, a retainer pin is removed, allowing one end of the pivot arm to pivot away from the ram.  The punch is then removed from the pivot arm, allowing a new punch to be installed thereon.  A pivot block assembly supports the workpiece on the base plate when engaged by the tool.  The assembly includes a pivot lid having a flat upper surface. The pivot lid is pivotably mounted on the base plate such that the upper surface thereof is pivoted to lie flat against the lower surface of the workpiece when the tool bends the workpiece.
Patent CA-2028287-A1 (CA)
Title: Benzocycloalkylaminopyridinamines and related compounds, a process and intermediates for their preparation and their use as medicaments
Inventor: EFFLAND RICHARD C
IPC: C07D401/04
Filed: 1990-10-23
Abstract: Benzocycloalkylaminopyridinamines and related compounds, a process and intermediates for their preparation and their use as medicaments There are described compounds of the formula, (see formula I) where R is hydrogen, loweralkyl, arylloweralkyl or loweralkylearbonyl; k is 0 or 1; m is 1, 2 or 3; k+m is 2 or 3; and n is 0 or 1; which compounds are useful as topical antiinflammatory agents for the treatment of various dermatoses , intermediates thereof and a process for their preparation.
Patent CA-2029186-A1 (CA)
IPC: G06F17/40
Filed: 1990-11-02
Abstract: Abstract The present invention is a trap selector for selecting an optimum trap meeting various uses which is designed to sequentially input required data for selecting the trap and to execute previously memorized trap-selecting programs by a microcomputer characterized in that the geometrical conditions of various kinds of traps are previously memorized, the thermodynamical working conditions such as pressure thereof are inputted, when an optimum trap must be selected, so as to calsulate the discharging flow rate (capacity), which is compared to the actually required discharging flow rate. In the conventional trap selector, all discharging characteristics for every pressure or temperature and the like of various kinds of traps must be memorized, but in the trap selector according to the present invention, the designated calculation is executed from the previously memorized geometrical conditions of various kinds of traps and the thermodynamical working conditions, which are inputted at the selection, such as pressure thereof and the obtained discharging flow rate is compared with actually required discharging flow rate and therefore the optimum trap can be decided.
Patent CA-2029841-A1 (CA)
Title: Phenolic antioxidants
Inventor: LAM WILLIAM Y
IPC: C10N30/10
Filed: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE          A sulfurized, phenolic antioxidant having a low chlorine content and good copper corrosion properties is prepared by reacting a partially sulfurized mixture of reactive, hindered phenols with formaldehyde.
Patent CA-2033534-A1 (CA)
Title: Control circuit for a multiple power level solenoid
Inventor: COLDEBELLA MARK
IPC: A63F7/26
Filed: 1991-01-03
Abstract: Abstract of The Disclosure The control circuit of the invention consists of a solenoid which generates a high propelling force when the player closes a flipper switch.  A primary timer circuit decreases the power when the flipper switch is held closed by a player for more than a predetermined length of time such that only a lower holding power is delivered.  Thereafter, if the flipper begins to slip from its holding or static position, a sensor activates a maintenance timer circuit which again generates the higher propelling force.  The maintenance timer circuit lowers the power after another predetermined length of time has expired.  If the flipper again begins to slip, the maintenance timer circuit is reactivated and the cycle is repeated.  Once the player releases the flipper switch, the solenoid is de-energized and both timer circuits  are reset until such time as the player again depresses the flipper switch.  In this manner, only the power necessary to maintain the desired mode of operation is delivered to the solenoid such that overheating and failure of the solenoid is avoided.
Patent CA-2033672-A1 (CA)
Title: Melamine derivatives as stabilisers for chlorine-containing polymers
Inventor: WEHNER WOLFGANG
IPC: C08L23/28
Filed: 1991-01-07
Abstract: Compositions containing a) a chlorine-containing polymer, b) 0.01 to 1% by weight, relative to the chlorine-containing polymer, of a compound of the formula I and/or its hydrochloride,   in which R is C6-C20alkyl, C3-C20alkyl interrupted by 1 to 5 oxygen atoms, C1-C20alkyl substituted by 1 to 5 OH, C3-C20alkenyl, C3-C8cycloalkyl, C1-C4alkyl-substituted C3-C8Cycloalkyl, C7-C11phenylalkyl, C7-C11phenylalkyl which is substituted on the phenyl by 1 to 3 radicals, these radicals, independently of one another, being hydroxyl, chlorine, Ct-C4alkyl, methoxy or ethoxy, or R is furthermore a group of the formula IIa or IIb,   in which X is C1-C20alkyloxy, C1-C20alkylthio, phenyloxy, phenylthio, benzyloxy or benzylthio, and R1, R2 and R3, independently of one another, are hydrogen, C1-C20alkyl, C1-C20alkyloxy, C1-C20alkylthio, C2-C12alkyloxycarbonyl, C2-C12alkanoyl, phenyl, phenyloxy, phenylthio, hydroxyl, mercapto or chlorine, and c) 0.01 to 5% by weight, relative to the chlorine-containing polymer, of an Me(II) carboxylate and/or Me(II)-phenolate, in which Me(II) is Ba, Ca, Mg, Cd or Zn.      Some of the compounds of the formula I are novel.